A train is running at a speed of 99 km/h. If the train is 565 m long, then what will be the time (in seconds) taken by it to cross a 975 m long tunnel?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 56.
The total distance to be covered = 565 + 975 = 1540 m
Time taken = 1540/(99 × 5/18)
⇒ (1540 × 18)/(99 × 5)
⇒ 56 seconds